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71122630 = 257112263
BaseRepresentation
bin1000011110100…
…11111011000110
311221211101220111
410033103323012
5121201411010
611020223234
71522350415
oct417237306
9157741814
1071122630
1137168537
121b99ab1a
13119727c7
14963547c
15639d58a
hex43d3ec6

71122630 has 8 divisors (see below), whose sum is σ = 128020752. Its totient is φ = 28449048.

The previous prime is 71122613. The next prime is 71122637. The reversal of 71122630 is 3622117.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71122637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3556122 + ... + 3556141.

It is an arithmetic number, because the mean of its divisors is an integer number (16002594).

Almost surely, 271122630 is an apocalyptic number.

71122630 is a deficient number, since it is larger than the sum of its proper divisors (56898122).

71122630 is a wasteful number, since it uses less digits than its factorization.

71122630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7112270.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 71122630 is about 8433.4233855535. The cubic root of 71122630 is about 414.3200361690.

Adding to 71122630 its reverse (3622117), we get a palindrome (74744747).

The spelling of 71122630 in words is "seventy-one million, one hundred twenty-two thousand, six hundred thirty".

Divisors: 1 2 5 10 7112263 14224526 35561315 71122630